Related by context. Frequent words. (Click for all words.) 79 ENSCO International 68 Hercules Offshore 68 Diamond Offshore Drilling 65 Newfield Exploration 64 National Oilwell Varco 64 Allis Chalmers Energy 62 Cal Dive International 62 Schlumberger SLB 62 Patterson UTI Energy 62 Harvest Natural Resources 62 Ensco 62 Schlumberger NYSE SLB 62 Oceaneering International 62 Nabors Industries Ltd. 62 Trico Marine Services 62 Approach Resources 61 Transocean NYSE RIG 61 Halliburton HAL 60 Comstock Resources 60 Hercules Offshore Inc. 60 Schlumberger Ltd 59 Transocean RIG 59 offshore drilling contractor 59 Cimarex Energy 59 Nabors Industries 59 Carrizo Oil & 59 Rosetta Resources 58 National Oilwell 58 Willbros Group 58 McMoRan Exploration Co. 58 Cheniere Energy 58 Schlumberger Limited 57 BPZ Energy 57 Helix Energy 57 Gasco Energy 57 NYSE HAL 57 Diamond Offshore 56 Brigham Exploration 56 Bronco Drilling 56 Overseas Shipholding Group 56 FMC Technologies 56 Eagle Bulk Shipping 55 EOG Resources 55 Schlumberger Ltd. 55 Crosstex Energy 55 ConocoPhillips COP 54 Patterson UTI 54 Sterling Bancshares 54 Pioneer Natural Resources 54 Schlumberger 54 FMC Technologies Inc. 54 Vanguard Natural Resources 54 Cimarex Energy Co. 54 GlobalSantaFe 54 Ultra Petroleum 53 Halliburton Co. 53 Sempra Energy NYSE SRE 53 Geokinetics 53 Royale Energy 52 FelCor Lodging Trust 52 Grant Prideco 52 oilfield 52 BPZ 52 NYSE HES 52 Bronco Drilling Company 52 NYSE RRC 52 Island Fabrication 51 driller 51 jackup 51 Legacy Reserves 51 Hornbeck Offshore Services 51 NYSE TSO 51 Transocean 51 Core Laboratories 51 Halliburton 51 ExxonMobil XOM 51 Enterra Energy 51 Anadarko Petroleum 51 Subsea 7 51 Quanta Services 51 Chevron NYSE CVX 51 Precision Drilling 51 Willbros 51 Brigham Exploration Company 51 TDW 51 Helmerich & 51 Petrohawk Energy Corporation 50 Precision Drilling Trust 50 Energy XXI 50 Venoco 50 Pioneer Drilling 50 Enerplus Resources Fund 50 EOG 50 NYSE TOT 50 WESCO International 50 drilling rig 50 Seadrill 50 Westlake Chemical 50 NYSE XOM 50 Denbury Resources 50 Copano Energy